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A series regulator maintains the output voltage at a constant level by constantly changing the effective resistance of the pass device, usually the output transistor.

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What does the voltage regulator do?

it controls the amount of voltage that is flowing in a circuit. To be more accurate, a voltage regulator provides a limiting mechanism to an electrical or electronic power source. In the case of modern automotive alternators the voltage regulator "regulates" the output from the alternator by limiting the current flowing through the rotating field assembly inside the alternator. The weaker the electromagnetic field of this "rotor" the lower the output (both current and voltage) of the alternator. When the electrical load on the alternator is low the regulator reduces the field strength based on it's set upper voltage limit. When the load increases beyond the capacity of the "limited" output the voltage drops (the load is kind of "shorting out" the power from the alternator) and the regulator allows the field current (and therefor the output of the alternator) to rise until the voltage reaches that "upper limit" again and so on. Hope this helps


What is the name of the device that controls the amount of electricity entering the rotor?

The device that controls the amount of electricity entering the rotor is called a voltage regulator. It helps maintain a stable voltage output to the rotor to ensure proper operation of the electrical system in the device.


What do you do to change the voltage of a 12 volt battery to a 6 volt output?

To change the voltage of a 12-volt battery to a 6-volt output, you can use a voltage regulator or a step-down transformer. A voltage regulator will reduce the voltage to the desired 6 volts, while a step-down transformer will step down the voltage from 12 volts to 6 volts. Both options will help you achieve a stable 6-volt output.


Why does a mercury cell give constant voltage throughout its life?

A mercury cell maintains a constant voltage throughout its life because it has a relatively constant internal resistance, which helps to stabilize the voltage output. The chemistry of the cell ensures that the voltage remains consistent as it discharges.


If an adaptor is marked with output 12v dc and 2000mA does this mean the appliance draws 2amps when in use?

Yes and No. You have three types of adaptors: constant current with variable voltage output. constant voltage with variable current output. constant voltage with constant current output. What you are talking about is the latter. This means that the adaptor was created for a specific appliance requiring 12V/2A, which it will indeed use. Heavier appliance will not draw enough current/voltage and will malfunction. Lighter appliance will draw too much current/voltage and will overload/shortcircuit.

Related Questions

What is difference between stabilizer and voltage regulator?

A voltage regulator is a circuit or device designed to deliver a constant voltage at its output regardless of changes in load current.A voltage stabilizer is a circuit or device designed to deliver a constant voltage at its output regardless of changes in incoming voltage.


What is power regulator?

A power regulator or a voltage regulator generates a fixed output voltage of a preset magnitude that remains constant regardless of changes to its input voltage or load conditions.


What is fullform of LM340?

The full form of LM340 is "LM340 Voltage Regulator." It is a popular three-terminal linear voltage regulator that provides a stable output voltage, typically 5V, 12V, or 15V, with a maximum output current of 3A. The LM340 is used in various electronic applications to maintain a constant voltage supply.


How does a voltage regulator control system voltage?

A voltage regulator maintains a constant output voltage by adjusting the amount of electrical energy supplied to a load. It compares the output voltage to a reference voltage and uses feedback mechanisms to correct any deviations. If the output voltage rises above the desired level, the regulator reduces the energy supplied; conversely, if it falls below, the regulator increases the supply. This ensures that the system voltage remains stable despite variations in load or input voltage.


Headlights keep blowing on a camaro?

There is a voltage regulator located on the internals of you alternator replace the altenator. Voltage regulator keeps voltage constant and stops spikes in power output, this is what is causing your headlights to blow.


What is the special properties of a diode?

in the negative biasing it gives the constant voltage irrespective of limited current.......the voltage it provides in the negative biasing is known as 'zener voltage' due to this property zener voltage is used as voltage regulator........voltage regulator is a circuit which gives constant output even the input is changing.


What is drop out voltage?

Dropout voltage is the minimum voltage difference required between the input and output of a linear voltage regulator for it to maintain a stable output voltage. If the input voltage falls below this threshold relative to the output voltage, the regulator can no longer ensure a consistent output, leading to voltage drop or instability. Dropout voltage is an important specification for devices that operate in low-voltage environments, as it affects the efficiency and performance of the regulator. Lower dropout voltages are generally preferable for better efficiency.


What is the purpose of the automatic voltage regulator?

The purpose of an adjustable voltage regulator is to have a regulator that can give out variable voltages. This is in contrast to a fixed voltage regulator which only outputs one voltage, which it is rated for. To allow for adjustable voltage, usually the resistors on the output of the regulator just need to be swapped for different values to give differing output voltages.


What is the special property of a zener diode?

in the negative biasing it gives the constant voltage irrespective of limited current.......the voltage it provides in the negative biasing is known as 'zener voltage' due to this property zener voltage is used as voltage regulator........voltage regulator is a circuit which gives constant output even the input is changing.


What is an 7805 regulator?

7805is a voltage regulator integrated circuit. It is a member of 78xx series of fixed linear voltage regulator ICs. The voltage source in a circuit may have fluctuations and would not give the fixed voltage output. The voltage regulator IC maintains the output voltage at a constant value. The xx in 78xx indicates the fixed output voltage it is designed to provide. 7805 provides +5V regulated power supply. Capacitors of suitable values can be connected at input and output pins depending upon the respective voltage levels.Pin Diagram:Pin Description:Pin NoFunctionName1Input voltage (5V-18V)Input2Ground (0V)Ground3Regulated output; 5V (4.8V-5.2V)Output


What is the difference of a fixed regulator from an adjustable regulator?

A fixed voltage regulator outputs only one specific voltage. An adjustable voltage regulator can be adjusted to output any voltage from the range it was designed for by changing the output resistors.


How does a zener diode maintain constant output voltage?

sharp reverse breakdown function